Lisa Robin Kelly, who starred in That 70’s Show, died in her sleep at a rehab facility on Wednesday, Aug. 14. She was just 43-years-old.

“Lisa had voluntarily checked herself into a treatment facility early this week where she was battling the addiction problems that have plagued her these past few years,” a statement reads. The actress’ cause of death has yet to be determined.

In this summer leading up to her death, Lisa’s life has been far from easy. In June, she was arrested on suspicion of a DUI. In July, she filed for divorce from her husband, Robert Gilliam, who she’d just married in October 2012. The couple had several violent encounters in the past, and she reportedly decided to leave him after things got physical in another fight.

Lisa played Laurie Forman on That 70’s Show from 1998-2003, and also starred in Married With Children from 1992-1997.